Hasp and padlock arrangement

ABSTRACT

A fastening arrangement of the hasp-and-padlock type is provided with a padlock carrier which is a pin having an axis and carrying a radial flange at its axial end remote from the associated mounting plate. The flange passes through the aperture in the hasp strap, and the shackle of the padlock fits axially between the strap and the flange with very little clearance, thereby protecting the pin. The shackle is protected against a cutting tool or saw by the flange. The dimensions of the flange and strap are selected so that the closed shackle is substantially completely received within the enveloping surface defined by straight lines connecting respective exposed edge portions of the flange and the hasp.

inane States Patent [191 Winkhaus [111 3,834,195 [451 Sept. 10,1974

[ HASP AND PADLOGK ARRANGEMENT [75] Inventor: Woligang'Winkhaus, Telgte,

Germany [73] Assignee: Aug. Winkhaus, Telgte/Westphalia,

'- Germany [22] Filed: Mar. 13, 1973 [21] Appl. N0.: 340,842

[30] Foreign Application Priority Data Mar. 22, 1972 Germany 2213967 [52] US. Cl 70/8, 70/43, 70/54, 292/281 [51] int. Cl E05b 65/48 [58] Field of Search 70/2, 3, 4, 5, 6, 7, 8, 70/9, 10, ll, 12, 13, 54, 55, 56, 43; 292/281, 282, 283, 284, 285

[56] References Cited UNITED STATES PATENTS 2,825,218 3/1958 OBrien 70/8 X 3,157,040 11/1964 Raye.... 70/6 X 3,652,114 3/1972 Cady t 292/281 FOREIGN PATENTS OR APPLICATIONS 348,575 2/1922 Germany 70/54 Primary Examiner-Robert L. Wolfe Attorney, Agent, or Firm-Hans Berman [57] ABSTRACT A fastening arrangement of the hasp-and-padlock type is provided with a padlock carrier which is a pin having an axis and carrying a radial flange at its axial end remote from the associated mounting plate. The flange passes through the aperture in the hasp strap, and the shackle of the padlock fits axially between the strap and the flange with very little clearance, thereby protecting the pin. The shackle is protected against a cutting tool or saw by the flange. The dimensions of the flange and strap are selected so that the closed shackle is substantially completely received within the enveloping surface defined by straight lines connecting respective exposed edge portions of the flange and the hasp.

8 Claims, 3 Drawing Figures PATENIEBSEP 1 01914 sum 10; 2

PAIENM SEP 1 0:314

SHEEI 20F 2 HASP AND PADLOCK ARRANGEMENT This invention relates to fastening arrangements for a door and the like, and particularly to a fastening arrangement in which the two elements to be fastened to each other are connected by a hasp on one element, a padlock carrier on the other element passing through an aperture of the hasp, and a closed padlock on the portion of the padlock carrier passing through the aperture in the hasp.

It is relatively easy to open aconventional fastening arrangement of the type described by means of simple hand tools, such as a hack saw, file, or wire cutter. Much of the shackle on the closed padlock is exposed to attack by a tool, and the conventional padlock carrier is a staple or eye of relatively small diameter which can be breached relatively quickly by commonly available tools. I

The primary object of the invention is the provision of a fastening arrangement of the general type described which offers better resistance to cutting, shearing, and the like than the known arrangements.

With this object in view, the invention provides an arrangement in which the padlock carrier includes a mounting plate combined with a pin fixedly fastened to the plate. The pin has an axis transverse to the face of the mounting plate from which the pin projects, and a flange fixedly fastened to a portion of the pin is spaced from the face of the mounting plate and radially projects from the pin. The flange is dimensioned for passage through the aperture in the swinging strap of the hasp. The padlock preferably employed with the hasp and padlock carrier has a shackle so dimensioned that the free length of the pin betweenthe mounting plate and the flange is substantially equal to the combined thickness of the hasp strap and the shackle.

Other features, additional'objects, and many of the attendant advantages of this invention will readily become apparent from the following detailed description of a preferred embodiment when considered in connection with the appended drawing in which:

FIG. 1 shows the hasp and padlock carrier of theinvention attached to a door and door frame respectively,

in a perspective view;

FIG. 2 is a perspective view of a lock of the invention preferred for use with the hasp and padlockcarrier of FIG. 1, the hasp and carrier being shown in fragmentary phantom view; and

FIG. 3 is a fragmentary top plan view, partly in section, of respective portions of the door and door frame locked to each other by the hasp and carrier of FIG. 1 and the padlock of FIG. 2.

Referring now to the drawing in detail, and initially to FIG. 1,'there is seen a hasp 11 whose normally movable portion 12 is an elongated steel strap attached to a base portion 13 of the same material by a hinge 14 which pivotally connects one longitudinal end portion of the strap 12 to the base portion 13 in such a manner that the strap 12 may be folded flat against the base the narrow edge portion of the strap in the directions of length and width of the strap 12.

The padlock carrier cooperating with the hasp 11 has a rectangular mounting plate 18, and a cylindrical pin 17 projects at right angles from the face of the mounting plate which is exposed when the plate isfastened'by wood screws to a door frame 20 as is shown in FIG. 1. A circular flange 116, coaxialv with the pin 17, radially projects from the free end of the pin in all radial directions. Its diameter is only slightly smaller than that of the aperture 15. The free axial length of the pin 17 between the mounting plate 18 and the flange 16 is greater than the thickness of the strap 12 as measured in the aperture 15, so that the flange 16 may be passed through the aperture 15 and the shackle of a padlock placed between the annular face of the flange l6 and the face of the strap 12 visible in FIG. 1 when it is desired to lock a door 19 to the door frame. 20, the base portion 13 of the hasp 12 being attached by wood screws in its four comers to the door 19.

The preferred padlock 22 for use with the hasp and padlock carrier illustrated in FIG. 1 is shown in FIGS. 2 and 3. Its approximately cylindrical body is formed by two heavy cover plates 23, 24, and a radially open groove extending about of the circumference of thepadlock body receives a shackle 25 of arcuate, elongated shape when the shackle is in the illustrated locking position. As is conventional, and not specifically illustrated,one end of the shackle is fastened to a hinge pin between the cover plates 23, 24, and can be swung from the locking position when released by a key inserted into a keyhole, obscured in the view of FIG. 1 and conventional in itself. In the locking position, the shackle 25 and the body of the padlock 22 form a closed ring whose central opening is aligned with respective radially open recesses 26 in the cover plates 23, 24.

As is evident from FIGS. 2 and 3, the circularly enlarged end portion of the hasp strap 12 is dimensioned so that it is at least coextensive with the padlock 22 in all directions perpendicular to the axis of the pin when the pin passes through the passage 15 and the opening in the closed ring of the padlock 22. Moreover, the flange 16 substantially completely covers the shackle in the direction of the pin axis in whichever manner the padlock 22 be. turned on the pin 17.

A hack saw or file cannot reach the pin 17 because the axial clearance between the hasp strap 12, the padlock 22, and the flange 16 is too small to permit insertion of the tool. Moreover, the pin snugly fits into the recesses 26 and the ring opening bounded by the shackle 25 and much heavierthan the conventional staple or eye. When it is attempted to cut through the shackle 25 by means of a file or saw blade, the tool would also have to cut first through the flange 16, the padlock body 23, 24, and/or'the hasp strap 12, as is evident from FIG. 3 in which a family of lines bdrawn between freely exposed edges of the flange, padlock body, and/or hasp strap define an enveloping surface which spacedly encloses the shackle 25.

A crowbar or equivalent lever tool cannot readily break the fastening arrangement from the door 19 or the door frame 20 because the recess 27 encloses the mounting plate 18 and the base portion 13 in the locked condition of the device, anda gap sufficient for introducing the lever tool is not available along the free An experienced burglar carrying a good set of tools including a rotary grinder or the like can destroy the illustrated fastening arrangement within a shorter time than would be required to break or otherwise open the door 19 without disturbing the fastening arrangement. The fastening arrangement of the invention, however, resists opening by an unauthorized person much more effectively than the conventional hasp-and-padlock closure without substantial increase in cost.

It should be understood, of course, that the foregoing disclosure relates only to a preferred embodiment of the invention, and that it is intended to cover all changes and modifications of the example of the invention herein chosen for the purpose of the disclosure which do not constitute departures from the spirit and scope of the invention set forth in the appended claims.

What is claimed is:

1. A fastening arrangement for a door and the like comprising, in combination:

a. a hasp including a base member, an elongated strap member, and a hinge having a pivot axis and connecting one longitudinal end portion of said strap member to said base member for angular movement of said strap member about said axis toward and away from a folded position in which said strap member is superimposed on said base member, the other longitudinal end portion of said strap member being formed with an aperture therethrough in the direction of said movement;

b. a padlock carrier including a mounting plate having a face, a pin fixedly fastened to said plate, said pin having an axis transverse to said face and projecting axially from said face, and a flange fixedly fastened to a portion of said pin spaced from said face, and said flange radially projecting from said pin and being dimensioned for passage through said aperture; and

c. a padlock having a body and an elongated shackle movable toward and away from a locking position in which said shackle and said body jointly constitute a closed ring formed with an opening dimensioned to pass said pin, but too small to pass said flange,

1. respective exposed edge portions of said flange and said hasp defining a family of straight lines constituting an enveloping surface,

2. every portion of said shackle being inwardly spaced from said surface when said pin passes through said aperture and through said opening, and said shackle is in said locking position.

2. A fastening arrangement for a door and the like comprising, in combination:

a. a hasp including a base member, an elongated strap member, and a hinge having a pivot axis and connecting one longitudinal end portion of said strap member to said base member for angular movement of said strap member about said axis toward and away from a folded position in which said strap member is superimposed on said base member, the longitudinal end portion of said strap memand being dimensioned for passage through said aperture; and

c. a padlock having a body and an elongated shackle movable relative to said body toward and away from a locking position in which said shackle and said body jointly constitute a closing ring formed with an-opening dimensioned to pass said pin, but too small to pass said flange, 1. said body including a cover plate, said shackle,

when in said locking position, being substantially entirely covered by said cover plate in the direction of said axis of said pin,

2. said cover plate being formed with a recess aligned with said opening, said pin passing through said recess in said locking position of said shackle, and said cover plate being axially interposed between said flange and said shackle in the locking position of said shackle.

3. An arrangement as set forth in claim 2, wherein said body includes a second cover plate, said shackle, when in said locking position being substantialyy entirely received between said cover plates, said second cover plate being formed with a recess aligned with said opening and with the recess in said first-mentioned cover plate in said locking position of said shackle.

4. An arrangement as set forth in claim 1, wherein the free length of said pin between said mounting plate and said flange is substantially equal to the combined thickness of said strap member and of said shackle.

5. An arrangement as set forth in claim 4, wherein said flange substantially covers said shackle in the direction of said axis when said pin passes through said aperture and through said opening, and said shackle is in said locking position.

6. An arrangement as set forth in claim 2, wherein said strap member is at least coextensive with said padlock in all directions perpendicular to said axis when said pin passes through said aperture and through said opening.

7. An arrangement as set forth in claim 1, wherein said strap member is formed with a recess substantially completely enclosing said base member and said mounting plate in said folded position of said strap member when said pin passes through said aperture and through said opening.

8. An arrangement as set forth in claim 3, wherein the free length of said pin between said mounting plate and said flange is at least equal to the combined thickness of said strap member, of said cover plates, and of said shackle, and said flange projects from said pin in all radial directions. 

1. A fastening arrangement for a door and the like comprising, in combination: a. a hasp including a base member, an elongated strap member, and a hinge having a pivot axis and connecting one longitudinal end portion of said strap member to said base member for angular movement of said strap member about said axis toward and away from a folded position in which said strap member is superimposed on said base member, the other longitudinal end portion of said strap member being formed with an aperture therethrough in the direction of said movement; b. a padlock carrier including a mounting plate having a face, a pin fixedly fastened to said plate, said pin having an axis transverse to said face and projecting axially from said face, and a flange fixedly fastened to a portion of said pin spaced from said face, and said flange radially projecting from said pin and being dimensioned for passage through said aperture; and c. a padlock having a body and an elongated shackle movable toward and away from a locking position in which said shackle and said body jointly constitute a closed ring formed with an opening dimensioned to pass said pin, but too small to pass said flange,
 1. respective exposed edge portions of said flange and said hasp defining a family of straight lines constituting an enveloping surface,
 2. every portion of said shackle being inwardly spaced from said surface when said pin passes through said aperture and through said opening, and said shackle is in said locking position.
 2. every portion of said shackle being inwardly spaced from said surface when said pin passes through said aperture and through said opening, and said shackle is in said locking position.
 2. said cover plate being formed with a recess aligned with said opening, said pin passing through said recess in said locking position of said shackle, and said cover plate being axially interposed between said flange and said shackle in the locking position of said shackle.
 2. A fastening arrangement for a door and the like comprising, in combination: a. a hasp including a base member, an elongated strap member, and a hinge having a pivot axis and connecting one longitudinal end portion of said strap member to said base member for angular movement of said strap member about said axis toward and away from a folded position in which said strap member is superimposed on said base member, the longitudinal end portion of said strap member being formed with an aperture therethrough in the direction of said movement; b. a padlock carrier including a mounting plate having a face, a pin fixedly fastened to said plate, said pin having an axis transverse to said face and projecting axially from said face, and a flange fixedly fastened to a portion of said pin spaced from said face, said flange radially projecting from said pin and being dimensioned for passage through said aperture; and c. a padlock having a body and an elongated shackle movable relative to said body toward and away from a locking position in which said shackle and said body jointly constitute a closing ring formed with an opening dimensioned to pass said pin, but too small to pass said flange,
 3. An arrangement as set forth in claim 2, wherein said body includes a second cover plate, said shackle, when in said locking position being substantialyy entirely received between said cover plates, said second cover plate being formed with a recess aligned with said opening and with the recess in said first-mentioned cover plate in said locking position of said shackle.
 4. An arrangement as set forth in claim 1, wherein the free length of said pin between said mounting plate and said flange is substantially equal to the combined thickness of said strap member and of said shackle.
 5. An arrangement as set forth in claim 4, wherein said flange substantially covers said shackle in the direction of said axis when said pin passes through said aperture and through said opening, and said shackle is in said locking position.
 6. An arrangement as set forth in claim 2, wherein said strap member is at least coextensive with said padlock in all directions perpendicular to said axis when said pin passes through said aperture and through said opening.
 7. An arrangement as set forth in claim 1, wherein said strap member is formed with a recess substantially completely enclosing said base member and said mounting plate in said folded position of said strap member when said pin passes through said aperture and through said opening.
 8. An arrangement as set forth in claim 3, wherein the free length of said pin between said mounting plate and said flange is at least equal to the combined thickness of said strap member, of said cover plates, and of said shackle, and said flange projects from said pin in all radial directions. 